A valve hand wheel clamping claw device

Abstract

The utility model discloses a valve hand wheel clamping device, which relates to the field of valve control technology, including: a base plate, a clamping claw and a turntable; an Ω-shaped hole is arranged at the front end of the clamping claw, and a transmission pin is fixed at the tail end of the clamping claw; a slide groove is arranged on the base plate, and the clamping claw is arranged in the slide groove and can slide radially in the slide groove; the center position of the turntable is connected with the center position of the base plate through a pin shaft; a curved rotating groove arranged from the center to the edge is arranged on the turntable; the tail end of the clamping claw is arranged at a position below the turntable, and the transmission pin is clamped in the curved rotating groove; the turntable is connected to a target transmission device; wherein, the Ω-shaped hole is used to clamp on the edge of the hand wheel of the valve to be operated; the target transmission device is used to drive the turntable to rotate; the turntable is used to drive the transmission pin to move radially through the curved rotating groove, so as to drive the clamping claw to slide radially along the slide groove. The utility model alleviates the technical problems of large transformation and re-change engineering and high cost in the prior art.

Description

Technical Field

[0001] The utility model relates to the technical field of valve control, in particular to a valve hand wheel clamping claw device. Background Art

[0002] LNG receiving stations have many fire-fighting and water-supply valves installed in underground valve wells, and some process manual valves are installed on pipe racks. In order to operate these valves, operators must enter deep wells and high places to perform switch operations, resulting in simple valve switches with safety risks and low work efficiency. In emergency situations, emergency response is even more difficult to guarantee.

[0003] The traditional solution is to extend the valve stem and extend the switch handwheel to the ground for easy operation. Although this arrangement solves the switch operation problem, it wastes ground space due to the complexity of underground pipelines and the large number of valves. In addition, the original design and installation have been completed, and the renovation and modification work volume and cost are high, which also affects the operating pipelines. Utility Model Content

[0004] The purpose of the utility model is to provide a valve hand wheel clamping claw device in order to solve at least one of the above technical problems.

[0005] In the first aspect, an embodiment of the utility model provides a valve handwheel clamping device, comprising: a base plate, a clamping claw and a turntable; an Ω-shaped hole is arranged at the front end of the clamping claw, and a transmission pin is fixed to the tail end of the clamping claw; a slide groove is arranged on the base plate, and the clamping claw is arranged in the slide groove and can slide radially in the slide groove; the center position of the turntable is connected to the center position of the base plate through a pin shaft; a curved rotating groove arranged from the center to the edge is arranged on the turntable; the tail end of the clamping claw is arranged at a position below the turntable, and the transmission pin is clamped in the curved rotating groove; the turntable is connected to a target transmission device; the Ω-shaped hole is used to clamp on the edge of the handwheel of the valve to be operated; the target transmission device is used to drive the turntable to rotate; the turntable is used to drive the transmission pin to move radially through the curved rotating groove, so as to drive the clamping claw to slide radially along the slide groove.

[0006] Furthermore, the target transmission device includes: a transmission rod and a transmission belt.

[0007] Furthermore, the bottom plate is a triangular rhombus structure; the bottom plate includes three slide grooves, and each corner of the triangular rhombus is correspondingly provided with a slide groove.

[0008] Furthermore, the number of the claws is three, and one claw is disposed in each of the slide grooves.

[0009] The utility model provides a valve handwheel claw device, which grasps the valve handwheel through the claw and drives the valve handwheel to rotate through the turntable. The turntable can be further connected to other transmission devices to realize remote valve switching. It has the advantages of free detachment, reliable grasping, simple structure and easy operation, which alleviates the technical problems of large amount of transformation and re-change engineering and high cost in the prior art. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] In order to more clearly illustrate the implementation methods of the present application or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0011] Figure 1 A top view of a valve hand wheel clamping device provided by an embodiment of the utility model;

[0012] Figure 2 A side sectional view of a valve hand wheel clamping claw device provided by an embodiment of the utility model;

[0013] Figure 3 A side view of a clamping claw provided in an embodiment of the utility model.

[0014] In the figure: 1, bottom plate, 2, claw, 3, turntable, 4, pin shaft, 5, curved rotating groove, 6, Ω-shaped hole, 7, transmission pin, 8, valve to be operated, 9, slide groove. DETAILED DESCRIPTION

[0015] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0016] Figure 1 1 is a top view of a valve hand wheel claw device provided according to an embodiment of the utility model. Figure 2 1 is a side sectional view of a valve hand wheel clamping device provided according to an embodiment of the utility model. Figure 1 and Figure 2As shown, the device comprises: a bottom plate 1, a clamping claw 2 and a rotating disk 3. A sliding groove 9 is arranged on the bottom plate 1, and the clamping claw 2 is arranged in the sliding groove 9 and can slide radially in the sliding groove 9; the center position of the rotating disk 3 is connected to the center position of the bottom plate 1 through a pin 4; and a curved rotating groove 5 arranged from the center to the edge is arranged on the rotating disk 3.

[0017] Figure 3 1 is a side view of a claw provided according to an embodiment of the utility model. Figure 3 As shown, the front end of the claw 2 is provided with an Ω-shaped hole 6, and the tail end of the claw 2 is fixed with a transmission pin 7. The tail end of the claw 2 is arranged below the turntable 3, and the transmission pin 7 is stuck in the curved rotating groove 5; the turntable 3 is connected to the target transmission device.

[0018] Specifically, the Ω-shaped hole 6 is used to clamp on the edge of the hand wheel of the valve to be operated 8;

[0019] A target transmission device, used to drive the turntable 3 to rotate;

[0020] The rotating disk 3 is used to drive the transmission pin 7 to move radially through the curved rotating groove 5, so as to drive the claw 2 to slide radially along the sliding groove 9.

[0021] Optionally, in an embodiment of the utility model, the target transmission device includes: a transmission rod and a transmission belt.

[0022] Optionally, the target transmission device includes a driving pulley, a pulley, a spindle, a support rod, etc., and is installed on the support rod together with the turntable and the base plate. The turntable is rotated by belt drive, and finally the valve handwheel switch is driven.

[0023] Preferably, if Figure 1 As shown, the bottom plate 1 is a triangular rhombus structure; the bottom plate 1 includes three slide grooves 9, and a slide groove 9 is correspondingly arranged at each corner of the triangular rhombus.

[0024] Preferably, the number of the claws 2 is three, and one claw 2 is disposed in each slide groove 9 .

[0025] The utility model provides a valve handwheel claw device, the working principle of which is as follows: an Ω-shaped hole 6 is opened at one end of the claw 2 for the valve handwheel to enter the claw 2, and a transmission pin 7 is installed at the other end to push the claw 2 to move radially. The claw 2 is placed in the slide groove 9 of the bottom plate 1 and can move along the bottom plate 1. The turntable 3 is opened with a curved rotation groove 5 and rotates through the pin shaft 4. The rotation of the turntable 3 simultaneously drives the curved rotation groove 5 to push the transmission pin 7 to change the position of the claw 2. When the position of the claw 2 reaches the valve handwheel size position, the valve handwheel enters the Ω-shaped hole 6 of the claw 2 to realize the valve handwheel grasping. At this time, the clockwise and counterclockwise rotation of the turntable 3 will drive the valve handwheel to rotate to realize the opening and closing of the valve.

[0026] From the above description, it can be seen that the utility model provides a valve handwheel claw device, which grasps the valve handwheel through the claw and drives the valve handwheel to rotate through the turntable. Further, the turntable can be connected to other transmission devices to realize remote switching of the valve. It has the advantages of free detachment, reliable grasping, simple structure and easy operation, which alleviates the technical problems of large amount of modification and re-change engineering and high cost in the prior art.

[0027] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

[0028] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A valve handwheel claw device, characterized in that: include: Base plate, jaws and turntable; An Ω-shaped hole is arranged at the front end of the clamping claw, and a transmission pin is fixed at the rear end of the clamping claw; a slide groove is arranged on the bottom plate, and the clamping claw is arranged in the slide groove and can slide radially in the slide groove; the center position of the turntable is connected with the center position of the bottom plate through a pin shaft; a curved rotation groove arranged from the center to the edge is arranged on the turntable; the rear end of the clamping claw is arranged at a position below the turntable, and the transmission pin is clamped in the curved rotation groove; the turntable is connected to a target transmission device; The Ω-shaped hole is used to clamp onto the edge of the handwheel of the valve to be operated; The target transmission device is used to drive the rotating disk to rotate; The rotating disk is used to drive the transmission pin to move radially through the curved rotating groove, so as to drive the claw to slide radially along the sliding groove.

2. The valve hand wheel claw device according to claim 1, characterized in that: The target transmission device comprises: a transmission rod and a transmission belt.

3. The valve hand wheel clamping device according to claim 1, characterized in that: The bottom plate is a triangular rhombus structure; the bottom plate includes three slide grooves, and each corner of the triangular rhombus is correspondingly provided with a slide groove.

4. The valve hand wheel clamping device according to claim 3, characterized in that: The number of the clamping claws is three, and one clamping claw is arranged in each of the sliding grooves.

Images